texstore.c revision 8bd06931018d5662b92f1cfeee2abaf352d0044c
18bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul/* $Id: texstore.c,v 1.26 2001/05/22 21:49:03 brianp Exp $ */ 28e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 38e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 48e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Mesa 3-D graphics library 58e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Version: 3.5 68e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 78e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. 88e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 98e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Permission is hereby granted, free of charge, to any person obtaining a 108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * copy of this software and associated documentation files (the "Software"), 118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * to deal in the Software without restriction, including without limitation 128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * the rights to use, copy, modify, merge, publish, distribute, sublicense, 138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * and/or sell copies of the Software, and to permit persons to whom the 148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Software is furnished to do so, subject to the following conditions: 158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The above copyright notice and this permission notice shall be included 178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * in all copies or substantial portions of the Software. 188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Authors: 298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Brian Paul 308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 32e75d2424e53d6023f4414e40694cd467e5392b96Brian Paul#include "colormac.h" 338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "context.h" 348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "convolve.h" 358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "image.h" 368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "macros.h" 378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "mem.h" 38371ef9c058b0d59bfb62689b64af1b29a2214d9eGareth Hughes#include "texformat.h" 398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "teximage.h" 408e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul#include "texstore.h" 417d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul#include "texutil.h" 428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Given an internal texture format enum or 1, 2, 3, 4 return the 468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * corresponding _base_ internal format: GL_ALPHA, GL_LUMINANCE, 478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA. Return the 488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * number of components for the format. Return -1 if invalid enum. 496b406bf09dc18f4d84ccb636d043c990a30da4e1Gareth Hughes * 506b406bf09dc18f4d84ccb636d043c990a30da4e1Gareth Hughes * GH: Do we really need this? We have the number of bytes per texel 516b406bf09dc18f4d84ccb636d043c990a30da4e1Gareth Hughes * in the texture format structures, so why don't we just use that? 528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulstatic GLint 548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulcomponents_in_intformat( GLint format ) 558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul switch (format) { 578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA: 588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA4: 598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA8: 608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA12: 618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_ALPHA16: 628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 1: 648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE: 658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE4: 668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE8: 678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE12: 688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE16: 698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 2: 718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE_ALPHA: 728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE4_ALPHA4: 738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE6_ALPHA2: 748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE8_ALPHA8: 758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE12_ALPHA4: 768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE12_ALPHA12: 778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_LUMINANCE16_ALPHA16: 788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 2; 798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY: 808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY4: 818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY8: 828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY12: 838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_INTENSITY16: 848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 3: 868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB: 878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_R3_G3_B2: 888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB4: 898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB5: 908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB8: 918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB10: 928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB12: 938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB16: 948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 3; 958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case 4: 968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA: 978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA2: 988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA4: 998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB5_A1: 1008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA8: 1018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGB10_A2: 1028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA12: 1038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_RGBA16: 1048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 4; 1058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX: 1068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX1_EXT: 1078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX2_EXT: 1088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX4_EXT: 1098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX8_EXT: 1108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX12_EXT: 1118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul case GL_COLOR_INDEX16_EXT: 1128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return 1; 113f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT: 114f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT16_SGIX: 115f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT24_SGIX: 116f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul case GL_DEPTH_COMPONENT32_SGIX: 117f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul return 1; 1188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul default: 1198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return -1; /* error */ 1208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 1218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 1228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 1258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This function is used to transfer the user's image data into a texture 1268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * image buffer. We handle both full texture images and subtexture images. 1278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * We also take care of all image transfer operations here, including 1288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * convolution, scale/bias, colortables, etc. 1298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 1308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The destination texel channel type is always GLchan. 1318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 1328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * A hardware driver may use this as a helper routine to unpack and 1338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * apply pixel transfer ops into a temporary image buffer. Then, 1348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * convert the temporary image into the special hardware format. 1358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 1368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Input: 1378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * dimensions - 1, 2, or 3 1388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * texFormat - GL_LUMINANCE, GL_INTENSITY, GL_LUMINANCE_ALPHA, GL_ALPHA, 1398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_RGB or GL_RGBA 14056671022f97cfbc199a47b3338125431e42030eeBrian Paul * texDestAddr - destination image address 1418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcWidth, srcHeight, srcDepth - size (in pixels) of src and dest images 1428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * dstXoffset, dstYoffset, dstZoffset - position to store the image within 1438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * the destination 3D texture 14456671022f97cfbc199a47b3338125431e42030eeBrian Paul * dstRowStride, dstImageStride - dest image strides in bytes 1458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcFormat - source image format (GL_ALPHA, GL_RED, GL_RGB, etc) 1468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcType - GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT_5_6_5, GL_FLOAT, etc 1478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * srcPacking - describes packing of incoming image. 1481c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * transferOps - mask of pixel transfer operations 1498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 1507d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paulstatic void 1517d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paultransfer_teximage(GLcontext *ctx, GLuint dimensions, 1527d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum texDestFormat, GLvoid *texDestAddr, 1537d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint srcWidth, GLint srcHeight, GLint srcDepth, 1547d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, 1557d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstRowStride, GLint dstImageStride, 1567d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum srcFormat, GLenum srcType, 1577d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLvoid *srcAddr, 1581c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const struct gl_pixelstore_attrib *srcPacking, 1591c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLuint transferOps) 1608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 1618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint texComponents; 1628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(ctx); 1648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dimensions >= 1 && dimensions <= 3); 16556671022f97cfbc199a47b3338125431e42030eeBrian Paul ASSERT(texDestAddr); 1668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcWidth >= 1); 1678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcHeight >= 1); 1688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcDepth >= 1); 1698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstXoffset >= 0); 1708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstYoffset >= 0); 1718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstZoffset >= 0); 1728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstRowStride >= 0); 1738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(dstImageStride >= 0); 1748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcAddr); 1758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(srcPacking); 1768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1770299ad753224372c7a6147f598fdad33f576a714Brian Paul texComponents = components_in_intformat(texDestFormat); 1788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* try common 2D texture cases first */ 1801c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (!transferOps && dimensions == 2 && srcType == CHAN_TYPE) { 1818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 1820299ad753224372c7a6147f598fdad33f576a714Brian Paul if (srcFormat == texDestFormat) { 1838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* This will cover the common GL_RGB, GL_RGBA, GL_ALPHA, 1848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE_ALPHA, etc. texture formats. Use memcpy(). 1858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 1868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLchan *src = (const GLchan *) _mesa_image_address( 1878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcPacking, srcAddr, srcWidth, srcHeight, 1888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, 0, 0, 0); 1898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLint srcRowStride = _mesa_image_row_stride(srcPacking, 1908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcWidth, srcFormat, srcType); 1918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLint widthInBytes = srcWidth * texComponents * sizeof(GLchan); 19256671022f97cfbc199a47b3338125431e42030eeBrian Paul GLchan *dst = (GLchan *) texDestAddr + dstYoffset * dstRowStride 1938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstXoffset * texComponents; 1948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (srcRowStride == widthInBytes && dstRowStride == widthInBytes) { 1958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul MEMCPY(dst, src, srcHeight * widthInBytes); 1968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 1978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 1988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint i; 1998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (i = 0; i < srcHeight; i++) { 2008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul MEMCPY(dst, src, widthInBytes); 2018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul src += srcRowStride; 2028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dst += dstRowStride; 2038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; /* all done */ 2068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2070299ad753224372c7a6147f598fdad33f576a714Brian Paul else if (srcFormat == GL_RGBA && texDestFormat == GL_RGB) { 2088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* commonly used by Quake */ 2098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLchan *src = (const GLchan *) _mesa_image_address( 2108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcPacking, srcAddr, srcWidth, srcHeight, 2118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, 0, 0, 0); 2128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLint srcRowStride = _mesa_image_row_stride(srcPacking, 2138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcWidth, srcFormat, srcType); 21456671022f97cfbc199a47b3338125431e42030eeBrian Paul GLchan *dst = (GLchan *) texDestAddr + dstYoffset * dstRowStride 2158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstXoffset * texComponents; 2168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint i, j; 2178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (i = 0; i < srcHeight; i++) { 2188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLchan *s = src; 2198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *d = dst; 2208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (j = 0; j < srcWidth; j++) { 2218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul *d++ = *s++; /*red*/ 2228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul *d++ = *s++; /*green*/ 2238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul *d++ = *s++; /*blue*/ 2248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul s++; /*alpha*/ 2258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul src += srcRowStride; 2278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dst += dstRowStride; 2288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; /* all done */ 2308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 2338e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* 2348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * General case solutions 2358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 2360299ad753224372c7a6147f598fdad33f576a714Brian Paul if (texDestFormat == GL_COLOR_INDEX) { 2378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* color index texture */ 2381ceda0f84fdfe07951071fdf4fa643d07f09a4d7Brian Paul const GLenum texType = CHAN_TYPE; 2398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint img, row; 24056671022f97cfbc199a47b3338125431e42030eeBrian Paul GLchan *dest = (GLchan *) texDestAddr + dstZoffset * dstImageStride 2418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstYoffset * dstRowStride 2428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstXoffset * texComponents; 2438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (img = 0; img < srcDepth; img++) { 2448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *destRow = dest; 2458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < srcHeight; row++) { 2468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLvoid *src = _mesa_image_address(srcPacking, 2478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); 2488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_unpack_index_span(ctx, srcWidth, texType, destRow, 2491c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcType, src, srcPacking, transferOps); 2508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul destRow += dstRowStride; 2518e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest += dstImageStride; 2538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2550299ad753224372c7a6147f598fdad33f576a714Brian Paul else if (texDestFormat == GL_DEPTH_COMPONENT) { 256f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul /* Depth texture (shadow maps) */ 257f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul GLint img, row; 25856671022f97cfbc199a47b3338125431e42030eeBrian Paul GLubyte *dest = (GLubyte *) texDestAddr 25956671022f97cfbc199a47b3338125431e42030eeBrian Paul + dstZoffset * dstImageStride 260f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul + dstYoffset * dstRowStride 261f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul + dstXoffset * texComponents; 262f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul for (img = 0; img < srcDepth; img++) { 26356671022f97cfbc199a47b3338125431e42030eeBrian Paul GLubyte *destRow = dest; 264f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul for (row = 0; row < srcHeight; row++) { 265f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul const GLvoid *src = _mesa_image_address(srcPacking, 266f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul srcAddr, srcWidth, srcHeight, srcFormat, srcType, img, row, 0); 26756671022f97cfbc199a47b3338125431e42030eeBrian Paul _mesa_unpack_depth_span(ctx, srcWidth, (GLfloat *) destRow, 268e75d2424e53d6023f4414e40694cd467e5392b96Brian Paul srcType, src, srcPacking); 269f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul destRow += dstRowStride; 270f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul } 271f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul dest += dstImageStride; 272f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul } 273f7e1dfeaefda8865252513bc4d880ea8640efe4dBrian Paul } 2748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 2758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* regular, color texture */ 2768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if ((dimensions == 1 && ctx->Pixel.Convolution1DEnabled) || 2778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (dimensions >= 2 && ctx->Pixel.Convolution2DEnabled) || 2788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (dimensions >= 2 && ctx->Pixel.Separable2DEnabled)) { 2798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* 2808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fill texture image with convolution 2818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 2828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint img, row; 2838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint convWidth = srcWidth, convHeight = srcHeight; 2848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLfloat *tmpImage, *convImage; 2858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul tmpImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat)); 2868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (!tmpImage) { 28708836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 2888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; 2898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul convImage = (GLfloat *) MALLOC(srcWidth * srcHeight * 4 * sizeof(GLfloat)); 2918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (!convImage) { 29208836341788a9f9d638d9dc8328510ccd18ddeb5Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 2938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul FREE(tmpImage); 2948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return; 2958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 2968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 2978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (img = 0; img < srcDepth; img++) { 2988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLfloat *srcf; 2998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLfloat *dstf = tmpImage; 3008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *dest; 3018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack and do transfer ops up to convolution */ 3038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < srcHeight; row++) { 3048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLvoid *src = _mesa_image_address(srcPacking, 3058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcAddr, srcWidth, srcHeight, 3068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, img, row, 0); 3078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_unpack_float_color_span(ctx, srcWidth, GL_RGBA, dstf, 3088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, src, srcPacking, 3091c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transferOps & IMAGE_PRE_CONVOLUTION_BITS, 3108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GL_TRUE); 3118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dstf += srcWidth * 4; 3128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* convolve */ 3158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (dimensions == 1) { 3168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(ctx->Pixel.Convolution1DEnabled); 3178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_convolve_1d_image(ctx, &convWidth, tmpImage, convImage); 3188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 3208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (ctx->Pixel.Convolution2DEnabled) { 3218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_convolve_2d_image(ctx, &convWidth, &convHeight, 3228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul tmpImage, convImage); 3238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 3258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul ASSERT(ctx->Pixel.Separable2DEnabled); 3268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_convolve_sep_image(ctx, &convWidth, &convHeight, 3278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul tmpImage, convImage); 3288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* packing and transfer ops after convolution */ 3328e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcf = convImage; 33356671022f97cfbc199a47b3338125431e42030eeBrian Paul dest = (GLchan *) texDestAddr + (dstZoffset + img) * dstImageStride 3348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstYoffset * dstRowStride; 3358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < convHeight; row++) { 3368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_pack_float_rgba_span(ctx, convWidth, 3378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (const GLfloat (*)[4]) srcf, 3380299ad753224372c7a6147f598fdad33f576a714Brian Paul texDestFormat, CHAN_TYPE, 3398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest, &_mesa_native_packing, 3401c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transferOps 3418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul & IMAGE_POST_CONVOLUTION_BITS); 3428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcf += convWidth * 4; 3438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest += dstRowStride; 3448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul FREE(convImage); 3488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul FREE(tmpImage); 3498e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul else { 3518e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* 3528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * no convolution 3538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 3548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint img, row; 35556671022f97cfbc199a47b3338125431e42030eeBrian Paul GLchan *dest = (GLchan *) texDestAddr + dstZoffset * dstImageStride 3568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstYoffset * dstRowStride 3578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul + dstXoffset * texComponents; 3588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (img = 0; img < srcDepth; img++) { 3598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLchan *destRow = dest; 3608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul for (row = 0; row < srcHeight; row++) { 3618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const GLvoid *srcRow = _mesa_image_address(srcPacking, 3628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcAddr, srcWidth, srcHeight, 3638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul srcFormat, srcType, img, row, 0); 3640299ad753224372c7a6147f598fdad33f576a714Brian Paul _mesa_unpack_chan_color_span(ctx, srcWidth, texDestFormat, 3650299ad753224372c7a6147f598fdad33f576a714Brian Paul destRow, srcFormat, srcType, srcRow, 3661c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcPacking, transferOps); 3678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul destRow += dstRowStride; 3688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul dest += dstImageStride; 3708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 3738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 3748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 3778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 3787d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * Transfer a texture image from user space to <destAddr> applying all 3797d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * needed image transfer operations and storing the result in the format 3807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * specified by <dstFormat>. <dstFormat> may be any format from texformat.h. 3817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * Input: 3821c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dimensions - 1, 2 or 3 3831c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * baseInternalFormat - base format of the internal texture format 3841c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * specified by the user. This is very important, see below. 3851c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dstFormat - destination image format 3861c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dstAddr - destination address 3871c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcWidth, srcHeight, srcDepth - size of source iamge 3881c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * dstX/Y/Zoffset - as specified by glTexSubImage 3897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * dstRowStride - stride between dest rows in bytes 3907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * dstImagetride - stride between dest images in bytes 3911c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcFormat, srcType - incoming image format and datatype 3921c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcAddr - source image address 3931c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * srcPacking - packing params of source image 3947d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * 3957d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * XXX this function is a bit more complicated than it should be. If 3967d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * _mesa_convert_texsubimage[123]d could handle any dest/source formats 3977d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * or if transfer_teximage() could store in any MESA_FORMAT_* format, we 3987d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul * could simplify things here. 3997d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul */ 4007d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paulvoid 4017d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul_mesa_transfer_teximage(GLcontext *ctx, GLuint dimensions, 4021c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLenum baseInternalFormat, 4037d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const struct gl_texture_format *dstFormat, 4047d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLvoid *dstAddr, 4057d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint srcWidth, GLint srcHeight, GLint srcDepth, 4067d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstXoffset, GLint dstYoffset, GLint dstZoffset, 4077d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint dstRowStride, GLint dstImageStride, 4087d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum srcFormat, GLenum srcType, 4097d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLvoid *srcAddr, 4107d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const struct gl_pixelstore_attrib *srcPacking) 4117d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul{ 4127d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLint dstRowStridePixels = dstRowStride / dstFormat->TexelBytes; 4137d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul const GLint dstImageStridePixels = dstImageStride / dstFormat->TexelBytes; 4147d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean makeTemp; 4151c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLuint transferOps = ctx->_ImageTransferState; 4161c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLboolean freeSourceData = GL_FALSE; 4171c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLint postConvWidth = srcWidth, postConvHeight = srcHeight; 4181c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 4191c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (transferOps & IMAGE_CONVOLUTION_BIT) { 4201c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_adjust_image_for_convolution(ctx, dimensions, &postConvWidth, 4211c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul &postConvHeight); 4221c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul } 4231c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 4241c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* 4251c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * Consider this scenario: The user's source image is GL_RGB and the 4261c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * requested internal format is GL_LUMINANCE. Now suppose the device 4271c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * driver doesn't support GL_LUMINANCE and instead uses RGB16 as the 4281c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * texture format. In that case we still need to do an intermediate 4291c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * conversion to luminance format so that the incoming red channel gets 4301c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * replicated into the dest red, green and blue channels. The following 4311c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * code takes care of that. 4321c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul */ 4331c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (dstFormat->BaseFormat != baseInternalFormat) { 4341c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* Allocate storage for temporary image in the baseInternalFormat */ 4351c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint texelSize = _mesa_components_in_format(baseInternalFormat) 4361c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * sizeof(GLchan); 4371c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint bytes = texelSize * postConvWidth * postConvHeight *srcDepth; 4381c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint tmpRowStride = texelSize * postConvWidth; 4391c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul const GLint tmpImgStride = texelSize * postConvWidth * postConvHeight; 4401c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul GLvoid *tmpImage = MALLOC(bytes); 4411c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (!tmpImage) 4421c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul return; 4431c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transfer_teximage(ctx, dimensions, baseInternalFormat, tmpImage, 4441c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcWidth, srcHeight, srcDepth, 4451c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 0, 0, 0, /* x/y/zoffset */ 4461c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul tmpRowStride, tmpImgStride, 4471c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat, srcType, srcAddr, srcPacking, transferOps); 4481c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 4491c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* this is our new source image */ 4501c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcWidth = postConvWidth; 4511c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcHeight = postConvHeight; 4521c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat = baseInternalFormat; 4531c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcType = CHAN_TYPE; 4541c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcAddr = tmpImage; 4551c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcPacking = &_mesa_native_packing; 4561c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul freeSourceData = GL_TRUE; 4571c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transferOps = 0; /* image transfer ops were completed */ 4581c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul } 4597d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 4601c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul /* Let the optimized tex conversion functions take a crack at the 4611c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul * image conversion if the dest format is a h/w format. 4621c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul */ 4637d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (_mesa_is_hardware_tex_format(dstFormat)) { 4641c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (transferOps) { 4657d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = GL_TRUE; 4667d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4677d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 4687d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (dimensions == 1) { 4697d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = !_mesa_convert_texsubimage1d(dstFormat->MesaFormat, 4707d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, 4717d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, 4727d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 4737d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 4747d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 4757d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4767d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else if (dimensions == 2) { 4777d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = !_mesa_convert_texsubimage2d(dstFormat->MesaFormat, 4787d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, 4797d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, 4807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, 4817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 4827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 4837d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 4847d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4857d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 4867d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(dimensions == 3); 4877d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = !_mesa_convert_texsubimage3d(dstFormat->MesaFormat, 4887d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, dstZoffset, 4897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 4907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, dstImageStridePixels, 4917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 4927d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, dstAddr); 4937d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 4947d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!makeTemp) { 4957d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* all done! */ 4961c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 4971c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); 4987d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 4997d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5007d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5017d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5027d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 5037d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* software texture format */ 5047d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul makeTemp = GL_FALSE; 5057d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5067d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5077d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (makeTemp) { 5087d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint postConvWidth = srcWidth, postConvHeight = srcHeight; 5097d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLenum tmpFormat; 5107d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLuint tmpComps, tmpTexelSize; 5117d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLint tmpRowStride, tmpImageStride; 5127d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLubyte *tmpImage; 5137d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5141c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (transferOps & IMAGE_CONVOLUTION_BIT) { 5157d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_adjust_image_for_convolution(ctx, dimensions, &postConvWidth, 5167d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul &postConvHeight); 5177d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5187d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5191c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul tmpFormat = dstFormat->BaseFormat; 5207d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpComps = _mesa_components_in_format(tmpFormat); 52136f3712e85cafef1b038189678030f6ef4f8b7e9Brian Paul tmpTexelSize = tmpComps * sizeof(GLchan); 5227d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpRowStride = postConvWidth * tmpTexelSize; 5237d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpImageStride = postConvWidth * postConvHeight * tmpTexelSize; 5247d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpImage = (GLubyte *) MALLOC(postConvWidth * postConvHeight * 5257d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcDepth * tmpTexelSize); 5261c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (!tmpImage) { 5271c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 5281c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); 5297d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 5301c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul } 5317d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5327d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul transfer_teximage(ctx, dimensions, tmpFormat, tmpImage, 5337d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 5347d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 0, 0, 0, /* x/y/zoffset */ 5357d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul tmpRowStride, tmpImageStride, 5361c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat, srcType, srcAddr, srcPacking, transferOps); 5371c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 5381c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 5391c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); 5407d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5417d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* the temp image is our new source image */ 5427d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth = postConvWidth; 5437d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcHeight = postConvHeight; 5447d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat = tmpFormat; 5457d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcType = CHAN_TYPE; 5467d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcAddr = tmpImage; 5477d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking = &_mesa_native_packing; 5481c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul freeSourceData = GL_TRUE; 5497d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5507d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5517d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (_mesa_is_hardware_tex_format(dstFormat)) { 5527d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(makeTemp); 5537d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (dimensions == 1) { 5547d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean b; 5557d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul b = _mesa_convert_texsubimage1d(dstFormat->MesaFormat, 5567d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, 5577d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, 5587d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 5597d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 5607d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 5617d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(b); 5627d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5637d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else if (dimensions == 2) { 5647d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean b; 5657d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul b = _mesa_convert_texsubimage2d(dstFormat->MesaFormat, 5667d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, 5677d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, 5687d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, 5697d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 5707d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, 5717d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstAddr); 5727d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(b); 5737d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5747d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 5757d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul GLboolean b; 5767d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul b = _mesa_convert_texsubimage3d(dstFormat->MesaFormat, 5777d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, dstZoffset, 5787d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 5797d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStridePixels, dstImageStridePixels, 5807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcFormat, srcType, 5817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcPacking, srcAddr, dstAddr); 5827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(b); 5837d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5847d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5857d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul else { 5867d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* software format */ 5877d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(!makeTemp); 5881c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul transfer_teximage(ctx, dimensions, dstFormat->BaseFormat, dstAddr, 5897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul srcWidth, srcHeight, srcDepth, 5907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstXoffset, dstYoffset, dstZoffset, 5917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul dstRowStride, dstImageStride, 5921c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul srcFormat, srcType, srcAddr, srcPacking, transferOps); 5937d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 5941c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul 5951c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul if (freeSourceData) 5961c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul FREE((void *) srcAddr); /* the temp image */ 5977d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul} 5987d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 5997d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul 6007d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul/* 6018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexImage1D(). 6028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image type will be GLchan. 6038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY, 6048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA. 6058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 6068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 6078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 6088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level, 6098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 6108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint border, 6118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const GLvoid *pixels, 6128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 6138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 6148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 6158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 6168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint postConvWidth = width; 61719d1e432612cf7db797da11793b13a6c1c6aac16Gareth Hughes GLint texelBytes; 6188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 6208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL); 6218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 6228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6237d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 6247d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 6257d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 6267d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 6277d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 6288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 62919d1e432612cf7db797da11793b13a6c1c6aac16Gareth Hughes texelBytes = texImage->TexFormat->TexelBytes; 63019d1e432612cf7db797da11793b13a6c1c6aac16Gareth Hughes 6318e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* allocate memory */ 6327d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->Data = MALLOC(postConvWidth * texelBytes); 6337d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!texImage->Data) { 6347d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D"); 6357d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 6367d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 6378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6388e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack image, apply transfer ops and store in texImage->Data */ 6391c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 1, _mesa_base_tex_format(ctx, internalFormat), 6401c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 6418e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, 1, 1, 0, 0, 0, 6428e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstRowStride */ 6438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 6448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 6453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 6463893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 6473893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 6483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 6493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 6503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 6518e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 6528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 6558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexImage2D(). 6568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image type will be GLchan. 6578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY, 6588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA. 6598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 6608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 6618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 6628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level, 6638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 6648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint border, 6658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 6668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 6678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 6688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 6698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 6708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint postConvWidth = width, postConvHeight = height; 6712c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes GLint texelBytes; 6728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 6748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, 6758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul &postConvHeight); 6768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul } 6778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6787d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 6797d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 6807d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 6817d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 6827d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 6833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texImage->FetchTexel = texImage->TexFormat->FetchTexel2D; 6842c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes 6852c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texelBytes = texImage->TexFormat->TexelBytes; 6868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* allocate memory */ 6887d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->Data = MALLOC(postConvWidth * postConvHeight * texelBytes); 6897d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!texImage->Data) { 6907d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D"); 6917d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 6927d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 6938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 6948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack image, apply transfer ops and store in texImage->Data */ 6951c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 2, _mesa_base_tex_format(ctx, internalFormat), 6961c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 6978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, 1, 0, 0, 0, 6982c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texImage->Width * texelBytes, 6998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 7008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 7013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 7023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 7033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 7043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 7053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 7063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 7078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 7088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 7128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexImage3D(). 7138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image type will be GLchan. 7148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The texture image format will be GL_COLOR_INDEX, GL_INTENSITY, 7158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_ALPHA, GL_RGB or GL_RGBA. 7168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * 7178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 7188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 7198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_teximage3d(GLcontext *ctx, GLenum target, GLint level, 7208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 7218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, GLint border, 7228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 7238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 7248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 7258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 7268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 7272c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes GLint texelBytes; 7288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7297d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 7307d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 7317d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 7327d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 7337d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 7342c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes 735197c526d63e1d4ea96f29eece392cdc389770b38Brian Paul texelBytes = texImage->TexFormat->TexelBytes; 7368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7378e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* allocate memory */ 7387d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->Data = MALLOC(width * height * depth * texelBytes); 7397d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul if (!texImage->Data) { 7407d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D"); 7417d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul return; 7427d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul } 7438e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7448e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* unpack image, apply transfer ops and store in texImage->Data */ 7451c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 3, _mesa_base_tex_format(ctx, internalFormat), 7461c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 7478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, depth, 0, 0, 0, 7482c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texImage->Width * texelBytes, 7492c3d34c905fa6b831a066afae83b938de05eb241Gareth Hughes texImage->Width * texImage->Height * texelBytes, 7508e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 7513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 7523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 7533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 7543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 7553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 7563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 7578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 7588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 7638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexSubImage1D(). 7648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 7658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 7668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_texsubimage1d(GLcontext *ctx, GLenum target, GLint level, 7678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint xoffset, GLint width, 7688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 7698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 7708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 7718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 7728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 7731c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 1, 7741c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_base_tex_format(ctx, texImage->IntFormat), 7751c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 7768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, 1, 1, /* src size */ 7778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul xoffset, 0, 0, /* dest offsets */ 7788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstRowStride */ 7798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 7808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 7813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 7823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 7833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 7843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 7853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 7863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 7878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 7888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 7908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 7918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexSubImage2D(). 7928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 7938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 7948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_texsubimage2d(GLcontext *ctx, GLenum target, GLint level, 7958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint xoffset, GLint yoffset, 7968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, 7978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 7988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 7998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 8021c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 2, 8031c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_base_tex_format(ctx, texImage->IntFormat), 8041c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 8058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, 1, /* src size */ 8068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul xoffset, yoffset, 0, /* dest offsets */ 80738f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes texImage->Width * texImage->TexFormat->TexelBytes, 8088e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 0, /* dstImageStride */ 8098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 8103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 8113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 8123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 8133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 8143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 8153893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 8168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 8208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the software fallback for Driver.TexSubImage3D(). 8218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_texsubimage3d(GLcontext *ctx, GLenum target, GLint level, 8248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint xoffset, GLint yoffset, GLint zoffset, 8258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, 8268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLenum format, GLenum type, const void *pixels, 8278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul const struct gl_pixelstore_attrib *packing, 8288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8298e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8308e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 83138f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes const GLint texelBytes = texImage->TexFormat->TexelBytes; 8321c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_transfer_teximage(ctx, 3, 8331c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul _mesa_base_tex_format(ctx, texImage->IntFormat), 8341c85aa33321821b44bea83d3dee702ab4e05f406Brian Paul texImage->TexFormat, texImage->Data, 8358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul width, height, depth, /* src size */ 8368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul xoffset, yoffset, xoffset, /* dest offsets */ 83738f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes texImage->Width * texelBytes, 83838f28665bf9fb5b2464738ca5074848ec2777ae1Gareth Hughes texImage->Width * texImage->Height * texelBytes, 8398e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul format, type, pixels, packing); 8403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* GL_SGIS_generate_mipmap */ 8413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (level == texObj->BaseLevel && texObj->GenerateMipmap) { 8423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_generate_mipmap(ctx, &ctx->Texture.Unit[ctx->Texture.CurrentUnit], 8433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul texObj); 8443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 8458e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8468e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8478e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8488e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8492aadbf41dfd4f63c6118d0ad2d8659d289cbe454Brian Paul 8502aadbf41dfd4f63c6118d0ad2d8659d289cbe454Brian Paul/* 8518e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fallback for Driver.CompressedTexImage1D() 8528e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8538e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8548e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_compressed_teximage1d(GLcontext *ctx, GLenum target, GLint level, 8558e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 8568e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint border, 8578e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLsizei imageSize, const GLvoid *data, 8588e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8598e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8608e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 8618e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* Nothing here. 8628e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The device driver has to do it all. 8638e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8648e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8658e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8668e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8678e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8688e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 8698e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fallback for Driver.CompressedTexImage2D() 8708e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8718e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8728e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_compressed_teximage2d(GLcontext *ctx, GLenum target, GLint level, 8738e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 8748e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint border, 8758e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLsizei imageSize, const GLvoid *data, 8768e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8778e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8788e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 8798e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* Nothing here. 8808e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The device driver has to do it all. 8818e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8828e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 8838e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8848e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8858e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 8868e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 8878e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Fallback for Driver.CompressedTexImage3D() 8888e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 8898e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paulvoid 8908e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_store_compressed_teximage3d(GLcontext *ctx, GLenum target, GLint level, 8918e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, 8928e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, 8938e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint border, 8948e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLsizei imageSize, const GLvoid *data, 8958e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj, 8968e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage) 8978e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 8988e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* Nothing here. 8998e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The device driver has to do it all. 9008e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9018e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 9028e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9038e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9048e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9058e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul/* 9068e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * This is the fallback for Driver.TestProxyTexImage(). 9078e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9088e39ad2cd67d49be40ff0822f3269affdf83d601Brian PaulGLboolean 9098e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul_mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level, 9108e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint internalFormat, GLenum format, GLenum type, 9118e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul GLint width, GLint height, GLint depth, GLint border) 9128e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul{ 9138e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_unit *texUnit; 9148e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_object *texObj; 9158e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul struct gl_texture_image *texImage; 9168e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9178e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (void) format; 9188e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul (void) type; 9198e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9208e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 9218e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul texObj = _mesa_select_tex_object(ctx, texUnit, target); 9228e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul texImage = _mesa_select_tex_image(ctx, texUnit, target, level); 9238e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9248e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul /* We always pass. 9258e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * The core Mesa code will have already tested the image size, etc. 9268e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * Drivers may have more stringent texture limits to enforce and will 9278e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul * have to override this function. 9288e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul */ 9297d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul /* choose the texture format */ 9307d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(ctx->Driver.ChooseTextureFormat); 9317d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx, 9327d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul internalFormat, format, type); 9337d58f44f73be59bd3583e6dfeedf56c43f7fbd55Brian Paul assert(texImage->TexFormat); 9348e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul 9358e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul return GL_TRUE; 9368e39ad2cd67d49be40ff0822f3269affdf83d601Brian Paul} 9373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 9383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 9393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 9403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul/* 9413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * Average together two rows of a source image to produce a single new 9423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * row in the dest image. It's legal for the two source rows to point 9433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * to the same data. The source rows are to be twice as long as the 9443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * dest row. 9453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 9463893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 9473893e638e6521b9c070e01c0b31d22754ff97a88Brian Pauldo_row(const struct gl_texture_format *format, GLint dstWidth, 9483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLvoid *srcRowA, const GLvoid *srcRowB, GLvoid *dstRow) 9493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 9503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul switch (format->MesaFormat) { 9513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_RGBA: 9523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 9533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLuint i, j; 9543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowA)[4] = (const GLchan (*)[4]) srcRowA; 9553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowB)[4] = (const GLchan (*)[4]) srcRowB; 9563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan (*dst)[4] = (GLchan (*)[4]) dstRow; 9573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 9583893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][0] = (rowA[j][0] + rowA[j+1][0] + 9593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][0] + rowB[j+1][0]) >> 2; 9603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][1] = (rowA[j][1] + rowA[j+1][1] + 9613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][1] + rowB[j+1][1]) >> 2; 9623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][2] = (rowA[j][2] + rowA[j+1][2] + 9633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][2] + rowB[j+1][2]) >> 2; 9643893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][3] = (rowA[j][3] + rowA[j+1][3] + 9653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][3] + rowB[j+1][3]) >> 2; 9663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 9673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 9683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 9693893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_RGB: 9703893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 9713893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLuint i, j; 9723893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowA)[3] = (const GLchan (*)[3]) srcRowA; 9733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowB)[3] = (const GLchan (*)[3]) srcRowB; 9743893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan (*dst)[3] = (GLchan (*)[3]) dstRow; 9753893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 9763893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][0] = (rowA[j][0] + rowA[j+1][0] + 9773893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][0] + rowB[j+1][0]) >> 2; 9783893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][1] = (rowA[j][1] + rowA[j+1][1] + 9793893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][1] + rowB[j+1][1]) >> 2; 9803893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][2] = (rowA[j][2] + rowA[j+1][2] + 9813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][2] + rowB[j+1][2]) >> 2; 9823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 9833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 9843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 9853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_ALPHA: 9863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_LUMINANCE: 9873893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_INTENSITY: 9883893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_COLOR_INDEX: 9893893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 9903893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLuint i, j; 9913893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan *rowA = (const GLchan *) srcRowA; 9923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan *rowB = (const GLchan *) srcRowB; 9933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan *dst = (GLchan *) dstRow; 9943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 9953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i] = (rowA[j] + rowA[j+1] + rowB[j] + rowB[j+1]) >> 2; 9963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 9973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 9983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 9993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_LUMINANCE_ALPHA: 10003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul { 10013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLuint i, j; 10023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowA)[2] = (const GLchan (*)[2]) srcRowA; 10033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLchan (*rowB)[2] = (const GLchan (*)[2]) srcRowB; 10043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLchan (*dst)[2] = (GLchan (*)[2]) dstRow; 10053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 10063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][0] = (rowA[j][0] + rowA[j+1][0] + 10073893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][0] + rowB[j+1][0]) >> 2; 10083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst[i][1] = (rowA[j][1] + rowA[j+1][1] + 10093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul rowB[j][1] + rowB[j+1][1]) >> 2; 10103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 10123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 10133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case MESA_FORMAT_DEPTH_COMPONENT: 10148bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10158bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 10168bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLfloat *rowA = (const GLfloat *) srcRowA; 10178bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLfloat *rowB = (const GLfloat *) srcRowB; 10188bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLfloat *dst = (GLfloat *) dstRow; 10198bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 10208bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (rowA[j] + rowA[j+1] + rowB[j] + rowB[j+1]) * 0.25F; 10218bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10228bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10238bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 10248bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul /* Begin hardware formats */ 10258bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGBA8888: 10268bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_ARGB8888: 10278bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10288bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 10298bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowA)[4] = (const GLubyte (*)[4]) srcRowA; 10308bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowB)[4] = (const GLubyte (*)[4]) srcRowB; 10318bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte (*dst)[4] = (GLubyte (*)[4]) dstRow; 10328bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 10338bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][0] = (rowA[j][0] + rowA[j+1][0] + 10348bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][0] + rowB[j+1][0]) >> 2; 10358bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][1] = (rowA[j][1] + rowA[j+1][1] + 10368bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][1] + rowB[j+1][1]) >> 2; 10378bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][2] = (rowA[j][2] + rowA[j+1][2] + 10388bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][2] + rowB[j+1][2]) >> 2; 10398bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][3] = (rowA[j][3] + rowA[j+1][3] + 10408bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][3] + rowB[j+1][3]) >> 2; 10418bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10428bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10438bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 10448bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGB888: 10458bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10468bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 10478bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowA)[3] = (const GLubyte (*)[3]) srcRowA; 10488bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowB)[3] = (const GLubyte (*)[3]) srcRowB; 10498bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte (*dst)[3] = (GLubyte (*)[3]) dstRow; 10508bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 10518bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][0] = (rowA[j][0] + rowA[j+1][0] + 10528bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][0] + rowB[j+1][0]) >> 2; 10538bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][1] = (rowA[j][1] + rowA[j+1][1] + 10548bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][1] + rowB[j+1][1]) >> 2; 10558bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][2] = (rowA[j][2] + rowA[j+1][2] + 10568bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][2] + rowB[j+1][2]) >> 2; 10578bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10588bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10598bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 10608bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGB565: 10618bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10628bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 10638bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowA = (const GLushort *) srcRowA; 10648bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowB = (const GLushort *) srcRowB; 10658bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLushort *dst = (GLushort *) dstRow; 10668bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 10678bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr0 = rowA[j] & 0x1f; 10688bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr1 = rowA[j+1] & 0x1f; 10698bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr0 = rowB[j] & 0x1f; 10708bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr1 = rowB[j+1] & 0x1f; 10718bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg0 = (rowA[j] >> 5) & 0x3f; 10728bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg1 = (rowA[j+1] >> 5) & 0x3f; 10738bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg0 = (rowB[j] >> 5) & 0x3f; 10748bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg1 = (rowB[j+1] >> 5) & 0x3f; 10758bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb0 = (rowA[j] >> 11) & 0x1f; 10768bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb1 = (rowA[j+1] >> 11) & 0x1f; 10778bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb0 = (rowB[j] >> 11) & 0x1f; 10788bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb1 = (rowB[j+1] >> 11) & 0x1f; 10798bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 10808bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 10818bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 10828bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (blue << 11) | (green << 5) | red; 10838bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10848bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 10858bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 10868bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_ARGB4444: 10878bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 10888bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 10898bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowA = (const GLushort *) srcRowA; 10908bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowB = (const GLushort *) srcRowB; 10918bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLushort *dst = (GLushort *) dstRow; 10928bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 10938bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr0 = rowA[j] & 0xf; 10948bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr1 = rowA[j+1] & 0xf; 10958bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr0 = rowB[j] & 0xf; 10968bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr1 = rowB[j+1] & 0xf; 10978bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg0 = (rowA[j] >> 4) & 0xf; 10988bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg1 = (rowA[j+1] >> 4) & 0xf; 10998bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg0 = (rowB[j] >> 4) & 0xf; 11008bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg1 = (rowB[j+1] >> 4) & 0xf; 11018bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb0 = (rowA[j] >> 8) & 0xf; 11028bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb1 = (rowA[j+1] >> 8) & 0xf; 11038bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb0 = (rowB[j] >> 8) & 0xf; 11048bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb1 = (rowB[j+1] >> 8) & 0xf; 11058bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAa0 = (rowA[j] >> 12) & 0xf; 11068bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAa1 = (rowA[j+1] >> 12) & 0xf; 11078bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBa0 = (rowB[j] >> 12) & 0xf; 11088bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBa1 = (rowB[j+1] >> 12) & 0xf; 11098bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 11108bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 11118bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 11128bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4; 11138bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (alpha << 12) | (blue << 8) | (green << 4) | red; 11148bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11158bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11168bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11178bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_ARGB1555: 11188bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11198bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 11208bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowA = (const GLushort *) srcRowA; 11218bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLushort *rowB = (const GLushort *) srcRowB; 11228bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLushort *dst = (GLushort *) dstRow; 11238bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 11248bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr0 = rowA[j] & 0x1f; 11258bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr1 = rowA[j+1] & 0x1f; 11268bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr0 = rowB[j] & 0x1f; 11278bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr1 = rowB[j+1] & 0xf; 11288bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg0 = (rowA[j] >> 5) & 0x1f; 11298bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg1 = (rowA[j+1] >> 5) & 0x1f; 11308bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg0 = (rowB[j] >> 5) & 0x1f; 11318bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg1 = (rowB[j+1] >> 5) & 0x1f; 11328bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb0 = (rowA[j] >> 10) & 0x1f; 11338bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb1 = (rowA[j+1] >> 10) & 0x1f; 11348bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb0 = (rowB[j] >> 10) & 0x1f; 11358bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb1 = (rowB[j+1] >> 10) & 0x1f; 11368bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAa0 = (rowA[j] >> 15) & 0x1; 11378bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAa1 = (rowA[j+1] >> 15) & 0x1; 11388bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBa0 = (rowB[j] >> 15) & 0x1; 11398bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBa1 = (rowB[j+1] >> 15) & 0x1; 11408bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 11418bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 11428bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 11438bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint alpha = (rowAa0 + rowAa1 + rowBa0 + rowBa1) >> 4; 11448bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (alpha << 15) | (blue << 10) | (green << 5) | red; 11458bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11468bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11478bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11488bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_AL88: 11498bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11508bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 11518bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowA)[2] = (const GLubyte (*)[2]) srcRowA; 11528bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte (*rowB)[2] = (const GLubyte (*)[2]) srcRowB; 11538bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte (*dst)[2] = (GLubyte (*)[2]) dstRow; 11548bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 11558bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][0] = (rowA[j][0] + rowA[j+1][0] + 11568bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][0] + rowB[j+1][0]) >> 2; 11578bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i][1] = (rowA[j][1] + rowA[j+1][1] + 11588bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul rowB[j][1] + rowB[j+1][1]) >> 2; 11598bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11608bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11618bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11628bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_RGB332: 11638bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11648bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 11658bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowA = (const GLubyte *) srcRowA; 11668bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowB = (const GLubyte *) srcRowB; 11678bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte *dst = (GLubyte *) dstRow; 11688bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 11698bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr0 = rowA[j] & 0x3; 11708bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAr1 = rowA[j+1] & 0x3; 11718bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr0 = rowB[j] & 0x3; 11728bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBr1 = rowB[j+1] & 0x3; 11738bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg0 = (rowA[j] >> 2) & 0x7; 11748bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAg1 = (rowA[j+1] >> 2) & 0x7; 11758bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg0 = (rowB[j] >> 2) & 0x7; 11768bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBg1 = (rowB[j+1] >> 2) & 0x7; 11778bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb0 = (rowA[j] >> 5) & 0x7; 11788bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowAb1 = (rowA[j+1] >> 5) & 0x7; 11798bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb0 = (rowB[j] >> 5) & 0x7; 11808bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint rowBb1 = (rowB[j+1] >> 5) & 0x7; 11818bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint red = (rowAr0 + rowAr1 + rowBr0 + rowBr1) >> 4; 11828bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint green = (rowAg0 + rowAg1 + rowBg0 + rowBg1) >> 4; 11838bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLint blue = (rowAb0 + rowAb1 + rowBb0 + rowBb1) >> 4; 11848bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (blue << 5) | (green << 2) | red; 11858bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11868bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 11878bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 11888bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_A8: 11898bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_L8: 11908bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_I8: 11918bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul case MESA_FORMAT_CI8: 11928bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul { 11938bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLuint i, j; 11948bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowA = (const GLubyte *) srcRowA; 11958bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul const GLubyte *rowB = (const GLubyte *) srcRowB; 11968bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul GLubyte *dst = (GLubyte *) dstRow; 11978bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (i = j = 0; i < dstWidth; i++, j+=2) { 11988bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul dst[i] = (rowA[j] + rowA[j+1] + rowB[j] + rowB[j+1]) >> 2; 11998bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12008bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul } 12018bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul return; 12023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul default: 12033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_problem(NULL, "bad format in do_row()"); 12043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 12053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 12063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12073893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 12113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulmake_1d_mipmap(const struct gl_texture_format *format, GLint border, 12123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, const GLubyte *srcPtr, 12133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, GLubyte *dstPtr) 12143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 12153893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint bpt = format->TexelBytes; 12163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *src; 12173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte *dst; 12183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12193893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* skip the border pixel, if any */ 12203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul src = srcPtr + border * bpt; 12213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst = dstPtr + border * bpt; 12223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12233893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* we just duplicate the input row, kind of hack, saves code */ 12243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, dstWidth - 2 * border, src, src, dst); 12253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (border) { 12273893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* copy left-most pixel from source */ 12283893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr, srcPtr, bpt); 12293893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* copy right-most pixel from source */ 12303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + (dstWidth - 1) * bpt, 12313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth - 1) * bpt, 12323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul bpt); 12333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 12343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 12353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12363893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 12383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulmake_2d_mipmap(const struct gl_texture_format *format, GLint border, 12393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, GLint srcHeight, const GLubyte *srcPtr, 12403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, GLint dstHeight, GLubyte *dstPtr) 12413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 12423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint bpt = format->TexelBytes; 12433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint srcRowStride = bpt * srcWidth; 12443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLint dstRowStride = bpt * dstWidth; 12453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *srcA, *srcB; 12463893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte *dst; 12473893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint row; 12483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* Compute src and dst pointers, skipping any border */ 12503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcA = srcPtr + border * ((srcWidth + 1) * bpt); 12513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcHeight > 1) 12523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcB = srcA + srcRowStride; 12533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else 12543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcB = srcA; 12553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst = dstPtr + border * ((dstWidth + 1) * bpt); 12563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (row = 0; row < dstHeight - 2 * border; row++) { 12583893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, dstWidth - 2 * border, srcA, srcB, dst); 12593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcA += 2 * srcRowStride; 12603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcB += 2 * srcRowStride; 12613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dst += dstRowStride; 12623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 12633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 12648bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul /* This is ugly but probably won't be used much */ 12653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (border > 0) { 12663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* fill in dest border */ 12673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* lower-left border pixel */ 12683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr, srcPtr, bpt); 12693893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* lower-right border pixel */ 12703893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + (dstWidth - 1) * bpt, 12713893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth - 1) * bpt, bpt); 12723893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* upper-left border pixel */ 12733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + dstWidth * (dstHeight - 1) * bpt, 12743893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + srcWidth * (srcHeight - 1) * bpt, bpt); 12753893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* upper-right border pixel */ 12763893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(dstPtr + (dstWidth * dstHeight - 1) * bpt, 12773893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth * srcHeight - 1) * bpt, bpt); 12783893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* lower border */ 12793893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, dstWidth - 2 * border, 12803893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + bpt, srcPtr + bpt, dstPtr + bpt); 12813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* upper border */ 12823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, dstWidth - 2 * border, 12833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, 12843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcPtr + (srcWidth * (srcHeight - 1) + 1) * bpt, 12853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstPtr + (dstWidth * (dstHeight - 1) + 1) * bpt); 12863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* left and right borders */ 12873893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (row = 0; row < dstHeight - 2 * border; row += 2) { 12883893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte tempPixel[32]; 12893893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcOffset; 12903893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcOffset = (srcWidth * (row * 2 + 1)) * bpt; 12913893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(tempPixel, srcPtr + srcOffset, bpt); 12923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcOffset = (srcWidth * (row * 2 + 2)) * bpt; 12933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(tempPixel + bpt, srcPtr + srcOffset, bpt); 12943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, 1, tempPixel, tempPixel, 12953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstPtr + (dstWidth * row + 1) * bpt); 12963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcOffset = (srcWidth * (row * 2 + 1) + srcWidth - 1) * bpt; 12973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(tempPixel, srcPtr + srcOffset, bpt); 12983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcOffset = (srcWidth * (row * 2 + 2) + srcWidth - 1) * bpt; 12993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul MEMCPY(tempPixel, srcPtr + srcOffset, bpt); 13003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, 1, tempPixel, tempPixel, 13013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstPtr + (dstWidth * row + 1 + dstWidth - 1) * bpt); 13023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 13053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13073893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulstatic void 13083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulmake_3d_mipmap(const struct gl_texture_format *format, GLint border, 13093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, GLint srcHeight, GLint srcDepth, 13103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *srcPtr, 13113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, GLint dstHeight, GLint dstDepth, 13123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLubyte *dstPtr) 13133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 13143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLvoid *tmpRowA = MALLOC(dstWidth * format->TexelBytes); 13153893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLvoid *tmpRowB = MALLOC(dstWidth * format->TexelBytes); 13163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLubyte *srcA, *srcB, *srcC, *srcD; 13173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint img, row; 13183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13193893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!tmpRowA || !tmpRowB) { 13203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (tmpRowA) 13213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(tmpRowA); 13223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 13233893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* 13263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * XXX lots of work to do here yet 13273893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 13283893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13293893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (img = 0; img < dstDepth - 2 * border; img++) { 13303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (row = 0; row < dstHeight - 2 * border; row++) { 13323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, dstWidth - 2 * border, srcA, srcB, tmpRowA); 13333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul do_row(format, dstWidth - 2 * border, srcC, srcD, tmpRowB); 13343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13363893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(tmpRowA); 13403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(tmpRowB); 13413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 13423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul/* 13453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * For GL_SGIX_generate_mipmap: 13463893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * Generate a complete set of mipmaps from texObj's base-level image. 13473893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * Stop at texObj's MaxLevel or when we get to the 1x1 texture. 13483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 13493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paulvoid 13503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul_mesa_generate_mipmap(GLcontext *ctx, 13513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const struct gl_texture_unit *texUnit, 13523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul struct gl_texture_object *texObj) 13533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul{ 13543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targets1D[] = { GL_TEXTURE_1D, 0 }; 13553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targets2D[] = { GL_TEXTURE_2D, 0 }; 13563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targets3D[] = { GL_TEXTURE_3D, 0 }; 13573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum targetsCube[] = { GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, 13583893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB, 13593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB, 13603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB, 13613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB, 13623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB, 13633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 0 }; 13643893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const GLenum *targets; 13653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLuint level; 13663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(texObj); 13683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(texObj->Image[texObj->BaseLevel]); 13693893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13703893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul switch (texObj->Dimensions) { 13713893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 1: 13723893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targets1D; 13733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 13743893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 2: 13753893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targets2D; 13763893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 13773893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 3: 13783893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targets3D; 13793893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 13803893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 6: 13813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul targets = targetsCube; 13823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 13833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul default: 13843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_problem(ctx, 13853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul "Bad texture object dimension in _mesa_generate_mipmaps"); 13863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 13873893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 13883893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13898bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul for (level = texObj->BaseLevel; level < texObj->MaxLevel 13908bd06931018d5662b92f1cfeee2abaf352d0044cBrian Paul && level < ctx->Const.MaxTextureLevels; level++) { 13913893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* generate level+1 from level */ 13923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul const struct gl_texture_image *srcImage; 13933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul struct gl_texture_image *dstImage; 13943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint srcWidth, srcHeight, srcDepth; 13953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint dstWidth, dstHeight, dstDepth; 13963893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint border, bytesPerTexel; 13973893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul GLint t; 13983893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 13993893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcImage = texObj->Image[level]; 14003893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(srcImage); 14013893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth = srcImage->Width; 14023893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcHeight = srcImage->Height; 14033893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcDepth = srcImage->Depth; 14043893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul border = srcImage->Border; 14053893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul bytesPerTexel = srcImage->TexFormat->TexelBytes; 14063893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14073893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* compute next (level+1) image size */ 14083893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcWidth - 2 * border > 1) { 14093893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth = (srcWidth - 2 * border) / 2 + 2 * border; 14103893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14113893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else { 14123893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth = srcWidth; /* can't go smaller */ 14133893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14143893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcHeight - 2 * border > 1) { 14153893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstHeight = (srcHeight - 2 * border) / 2 + 2 * border; 14163893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14173893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else { 14183893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstHeight = srcHeight; /* can't go smaller */ 14193893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14203893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (srcDepth - 2 * border > 1) { 14213893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth = (srcDepth - 2 * border) / 2 + 2 * border; 14223893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14233893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul else { 14243893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth = srcDepth; /* can't go smaller */ 14253893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14263893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14273893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (dstWidth == srcWidth && 14283893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstHeight == srcHeight && 14293893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth == srcDepth) { 14303893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* all done */ 14313893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 14323893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14333893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14343893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* Need this loop just because of cubemaps */ 14353893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul for (t = 0; targets[t]; t++) { 14363893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(t < 6); 14373893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14383893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage = _mesa_select_tex_image(ctx, texUnit, targets[t], level+1); 14393893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!dstImage) { 14403893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage = _mesa_alloc_texture_image(); 14413893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!dstImage) { 14423893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); 14433893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 14443893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14453893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_set_tex_image(texObj, targets[t], level + 1, dstImage); 14463893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14473893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14483893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* Free old image data */ 14493893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (dstImage->Data) 14503893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul FREE(dstImage->Data); 14513893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14523893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* initialize new image */ 14533893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_init_teximage_fields(ctx, dstImage, dstWidth, dstHeight, 14543893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstDepth, border, srcImage->Format); 14553893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->DriverData = NULL; 14563893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->TexFormat = srcImage->TexFormat; 14573893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->FetchTexel = srcImage->FetchTexel; 14583893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14593893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul ASSERT(dstWidth * dstHeight * dstDepth * bytesPerTexel > 0); 14603893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14613893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* alloc new image buffer */ 14623893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstImage->Data = MALLOC(dstWidth * dstHeight * dstDepth 14633893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * bytesPerTexel); 14643893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul if (!dstImage->Data) { 14653893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); 14663893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 14673893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14683893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul 14693893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul /* 14703893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul * We use simple 2x2 averaging to compute the next mipmap level. 14713893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul */ 14723893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul switch (texObj->Dimensions) { 14733893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 1: 14743893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul make_1d_mipmap(srcImage->TexFormat, border, 14753893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth, (const GLubyte *) srcImage->Data, 14763893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth, (GLubyte *) dstImage->Data); 14773893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 14783893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 2: 14793893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 6: 14803893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul make_2d_mipmap(srcImage->TexFormat, border, 14813893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth, srcHeight, (const GLubyte *) srcImage->Data, 14823893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth, dstHeight, (GLubyte *) dstImage->Data); 14833893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 14843893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul case 3: 14853893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul make_3d_mipmap(srcImage->TexFormat, border, 14863893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul srcWidth, srcHeight, srcDepth, (const GLubyte *) srcImage->Data, 14873893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul dstWidth, dstHeight, dstDepth, (GLubyte *) dstImage->Data); 14883893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul break; 14893893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul default: 14903893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul _mesa_problem(ctx, "bad dimensions in _mesa_generate_mipmaps"); 14913893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul return; 14923893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } 14933893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } /* loop over tex image targets */ 14943893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul } /* loop over tex levels */ 14953893e638e6521b9c070e01c0b31d22754ff97a88Brian Paul} 1496